Use Euler's method with \(h= 0.10 \) to approximate \(x( 1.2 )\) and \(y( 1.2 )\) given the following system of IVPs.

\[ x'= 4 \, t^{2} x^{2} + 2 \, x y^{2} - 3 \hspace{2em} x( 1 )= 1 \]

\[ y'= -t^{2} y - 4 \, x y - 1 \hspace{2em} y( 1 )= -1 \]